We found this sophisticated meter circuit in an article in Radio Electronics magazine from June 1959. The article taught how to assemble it. Transistors are common types at the time.
Found in a magazine 73 for radio amateurs, this circuit operates in the 144 MHz band, at a...
The frequency of this oscillator depends on the crystal. The transistor supports equivalent, and...
This simple bridge circuit can be used for impedance or resistance measurement using a high...